Mysql必读mysql学习笔记之帮助文档

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本文介绍了MysqL必读MysqL学习笔记之帮助文档，希望对您有用。如果有疑问，可以联系我们。

MysqL入门查看系统帮助

MysqL入门help contents

MysqL入门MysqL> help contents;You asked for help about help category: "Contents"For more information,type 'help <item>',where <item> is one of the followingcategorIEs:  Account Management  administration  Compound Statements  Data DeFinition  Data Manipulation  Data Types  Functions  Functions and ModifIErs for Use with GROUP BY  Geographic Features  Help Metadata  Language Structure  Plugins  Procedures  Storage Engines  table Maintenance  Transactions  user-defined Functions  Utility

MysqL入门帮助文档的目录列表

MysqL入门查看数据类型

MysqL入门help data types

MysqL入门MysqL> help data types;You asked for help about help category: "Data Types"For more information,where <item> is one of the followingtopics:  auto_INCREMENT  BIGINT  BINARY  BIT  BLOB  BLOB DATA TYPE  BOolEAN  CHAR  CHAR BYTE  DATE  DATETIME  DEC  DECIMAL  DOUBLE  DOUBLE PRECISION  ENUM  float  INT  INTEGER  LONGBLOB  LONGTEXT  MEDIUMBLOB  MEDIUMINT  MEDIUMTEXT  SET DATA TYPE  SMALliNT  TEXT  TIME  TIMESTAMP  TINYBLOB  tinyint  TINYTEXT  VARBINARY  VARCHAR  YEAR DATA TYPE

MysqL入门查看整数

MysqL入门MysqL> help int;name: 'INT'Description:INT[(M)] [UNSIGNED] [ZEROFILL]A normal-size integer. The signed range is -2147483648 to 2147483647.The unsigned range is 0 to 4294967295.URL: http://dev.MysqL.com/doc/refman/5.7/en/numeric-type-overvIEw.HTMLMysqL> help tinyint;name: 'tinyint'Description:tinyint[(M)] [UNSIGNED] [ZEROFILL]A very small integer. The signed range is -128 to 127. The unsignedrange is 0 to 255.URL: http://dev.MysqL.com/doc/refman/5.7/en/numeric-type-overvIEw.HTML

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